Topic: Ethernet Connection issue with Nintendo Switch

Not sure how much help I'll get on this one but here it goes.

I use Pdanet+ on my phone as a tethering app due to me not having an actual internet provider where I live. I have this tethered do my desktop which then is shared through my network settings to a router from an Ethernet cable. The router is then hooked up to my TV, Xbox, and Switch and Laptop through Ethernet cable. The connections all work for every other device other than my Nintendo Switch. I have the TrueGreen adapter which I tried at my brothers house to make sure it wasn't the adapter causing the issue. Also tried it in my dock to make sure it wasn't a USB issue on my dock. All worked perfectly fine. Not sure if I need to add some ports to my router or if this will even work which if it doesn't.....I wasted a few dollars. If you know of anything to resolve my issue I would greatly appreciate it.

maybe, just maybe this is still adapters fault ?